Answer:
B
Step-by-step explanation:
To rationalise the denominator.
Multiply the numerator/denominator by the radical on the denominator.
The radical on the denominator is , thus
Multiply the fraction by
→ B
A person enrolls in a diet and exercise program that guarantees a loss of at least pounds per week. The person's weight at the b
eginning of the program is 190 pounds. Find the maximum number of weeks before the person attains a goal weight of 120 pounds.
1 answer:
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Answer:
112 students
Step-by-step explanation:
Please see the attached picture for full solution.
You're looking for a value 
such that
Because the distribution is symmetric, the value of in either case will be the same.
Now, because the distribution is continuous, you have that
The mean for the standard normal distribution is
, and because the distribution is symmetric about its mean, it follows that 
.
You can consult a score table to find the corresponding score for this probability. It turns out to be 
.
Because the distribution is symmetric, the value of
Now, because the distribution is continuous, you have that
The mean for the standard normal distribution is
You can consult a